Why is my radiator pipe hot but the radiator is cold?
Generally, a radiator that is warm at the top but cold at the bottom suggests that the hot water is able to flow into the radiator but is getting stuck somewhere in the middle. If it seems to be just one radiator that’s causing a problem, you can remove it and clean it thoroughly.
Why are my radiators getting hot when hot water is on?
The diverter goes into a ‘mid position’, which allows the hot water to flow to both the water tank and the radiators. When a diverter fails or gets blocked with debris, hot water intended for the hot water circuit can get into the radiator circuit. Then the radiators will be hot even though the heat is turned off.
Is the return pipe of a radiator hot or cold?
Radiator 12 is heating up (even though it is last on the flow) and the return is red hot by the lock shield but despite it only then travelling approx 7ft back to the boiler the return pipe is only warm to the touch. I would appreciate any advice as we simply cannot afford to run the boiler constantly, and likewise we cannot have no heating.
Where does the hot water come from on a radiator?
The flow to the cylinder should be through the 3 port valve where it is capped off but has been bodged. Your plumber should have connected the radiator return (red circle) into the cenrtal heating return and not the domestic hot water return really but it will often work ok.
Why is the hot pipe on my Rad not hot?
Hi all my rads are red hot apart from 1. the pipe going to the rad is red hot i undid the trv and water came out i put a hose pipe on the rad and opened the other end and water came out. so why is the rad not getting hot????????? TRV is jammed shut. Remove head and check that pin can be moved up and down.
Is the radiator in my front room hot or cold?
The radiator in my front room won’t heat up. I can feel the pipe is hot up to the thermostatic valve but the radiator is cold. I’ve removed the radiator from the wall and flushed it.
Radiator 12 is heating up (even though it is last on the flow) and the return is red hot by the lock shield but despite it only then travelling approx 7ft back to the boiler the return pipe is only warm to the touch. I would appreciate any advice as we simply cannot afford to run the boiler constantly, and likewise we cannot have no heating.
The flow to the cylinder should be through the 3 port valve where it is capped off but has been bodged. Your plumber should have connected the radiator return (red circle) into the cenrtal heating return and not the domestic hot water return really but it will often work ok.
What causes water to overflow from the radiator?
The car still overheats. Again, upper hose hot, lower cold. The radiator is cold by the lower hose, then warm in an arc around the cold section, then hot along the top and on the entire passenger half of the radiator. Radiator fluid overflowed the overflow.
Is the lower radiator hose hot or cold?
The upper radiator hose is extremely hot, the lower radiator hose is cold. The thermostat has been replaced 3 times now. They have all been put in boiling water, and they all opened. The car has been parked on an inclined and filled with coolant, been jacked up and filled, we’ve used the cap to vent, we’ve used the bleeder to vent.
